8199494688 has 384 divisors, whose sum is σ = 28643328000. Its totient is φ = 1989411840.

The previous prime is 8199494671. The next prime is 8199494701. The reversal of 8199494688 is 8864949918.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11095023 + ... + 11095761.

It is an arithmetic number, because the mean of its divisors is an integer number (74592000).

Almost surely, 2^8199494688 is an apocalyptic number.

8199494688 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8199494688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14321664000).

8199494688 is an abundant number, since it is smaller than the sum of its proper divisors (20443833312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8199494688 is a wasteful number, since it uses less digits than its factorization.

8199494688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 860 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 66.

The square root of 8199494688 is about 90551.0612196235. The cubic root of 8199494688 is about 2016.4882525525.

The spelling of 8199494688 in words is "eight billion, one hundred ninety-nine million, four hundred ninety-four thousand, six hundred eighty-eight".